Home / 2,289.20-3,159.27-1,404.54

Finding the Fourth Proportional to 2,289.20, 3,159.27 and 1,404.54

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Solution

The fourth proportional to 2,289.20, 3,159.27 and 1,404.54 is: 1,938.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.20 : 3,159.27 = 1,404.54 : x
  2. Step 2: Convert to fraction form
    2,289.20/3,159.27 = 1,404.54/x
  3. Step 3: Cross multiply
    2,289.20x = 3,159.27 × 1,404.54
  4. Step 4: Simplify right side
    2,289.20x = 4,437,321.09
  5. Step 5: Solve for x
    x = 4,437,321.09/2,289.20
  6. Step 6: Final answer
    x = 1,938.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.